b'PROJECT PROFILEPHOTOS BY SKYHIVE.load-bearing masonry wall. Moisturewall of the heritage structure versus thewater infiltration and degradation, thus considerations for the existing nail-lami- newly designed vertical expansion of theextending the life cycle of the building.nated and heavy timber elements werehigh-performance ventilated rainscreen also made, and through collaborationand lightweight wall. SEQUENCING THE FACELIFT with the structural engineer, Fast + Epp,The proposed building is to complyAND EXTENSIONresponsive measures were undertaken towith the City of Vancouver Building provide a robust below-grade water- By-law 2019 and Part 10 Energy andLastly, as the project continues to proofing strategy to control bulk waterWater Efficiency. Securing a connectionprogress through construction, walking absorption and water runoff betweento a low-carbon energy system (LCES)by we can visibly see the hoarding and the existing foundations and the newwas integral to defining the performancetenting of the existing structure as foundation elements.targets for thermal energy demandthe build team proceeds to delicately Use of modern-day waterproofing intensity (TEDI), thermal energy useremove and preserve elements of the products allowed the team to navigateintensity (TEUI) and greenhouse gasheritage and restore criticalchallenging sequencing and accessintensity (GHGI) limits.structural integrity.concerns while still actively mitigatingWith specific attention to envelope,It is a fine dance of sequencing and water infiltration for these newlythe TEDI limit drove the team to programmed spaces. carefully evaluate newly generatedcontrol by the build team: the new is thermal bridging instances on the newrooted through the old and the old MODERN-DAY THERMALrainscreen system. With regards to theis revitalized to its original character. PERFORMANCEheritage skin, we were able to relax insu- Proudly, 837 Beatty establishesEntuitive and the energy modeller,lating performance targets in order tomore precedent for Vancouver to MCW Group, had a unique challengehighlight the advantages of the heritagepreserve its historical fabric while to balance the previously establishedscope but specifically looked at restoringmeeting the demands of a growing high-performing load-bearing massand improving conditions to resistdowntown density.14 BCBEC ELEMENTSA BCBEC PUBLICATION EXISTING ELEVATION DIAGRAM BY OFFICE OF MCFARLANE + BIGGAR ARCHITECTS + DESIGNERS'